Is there a way to set all the 0 value pixels on a raster to nodata using GDAL?
I would like to use fillnodata to fill some holes, but holes are set to 0, so I need to delete them first
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You could try something like this with gdal_translate
gdal_translate -of GTiff -a_nodata 0 input.tif output.tif
gdalbuildvrt -of GTIFF -srcnodata 0 input.tif myVrt.vrt
gdal_translate -of GTIFF -scale -a_nodata 0 myVrt.vrt output.tif
beside this you can use raster calculator plugin or grass in qgis too. and arcpy SetNull method.